The security breach was first reported last week, when those responsible claimed 1.5 terabytes of data had been stolen, and leaked a script for the show online. The Guardian now reports that the hackers have released 3.4GB of data and are demanding a ransom from HBO to stop them leaking anything else.
One of the documents leaked this week appeared to contain personal information such as phone numbers and email addresses for actors on the show, including Emilia Clarke, Peter Dinklage, and Lena Headey.
The hackers have demanded “our six-month salary in bitcoin,” and claimed they earn $12 million to $15 million a year from blackmailing organizations. The demands were laid out in a video from “Mr. Smith” sent to HBO chief executive Richard Plepler. The video warned Plepler to pay within three days or HBO shows and confidential data would be leaked online.
The hackers are yet to release a full episode of Game of Thrones, instead leaking draft scripts. That makes it unlikely they have got their hands on any episodes. An episode of Game of Thrones was leaked before it was broadcast last week, when distribution partner Star India accidentally published it online.
A spokesperson for HBO told WIRED that the company’s “forensic review is ongoing” and that “the review to date has not given us a reason to believe that our email system as a whole has been compromised.”